108 INSECTA MADERENSIA. 



of the whole annual kingdom, the velocity with which they run heing perfectly 

 prodigious. Like Catops, they delight in moist and shady spots, occurring imder 

 dead leaves, logs of wood, and other rotting sulistances of a vegetable nature ; as 

 weU as at the roots of grass, and amongst moss, in damp localities beneath trees. 



85. Acratrichis vunbricola, WoU. 



A. obovata lata valde pubescens fusco-nigra subopaca, protborace amplissimo elytris latiorc, sub- 

 picescenti, angulis posticis dilutioribus et valdissime productis, antennis pedibusque palbdo- 

 testaceis. 



Long. Corp. lin. \. 



Habitat in montibus Maderae, sub foliis arborum madidis, — prope lacum crateriformem Lagoa dictum, 

 in regione Fanalensi, d. 12 Jid. a.u. 1850 parcissime lecta. 



A. broad, and obovate (being mucb wider in front tbau behind), brownish-black, and with a just 

 perceptibly yellowish or aeneous tinge; closely punctured, subopake, and exceedingly pubescent. 

 PrutJiorax very large, and wide (especially behind), surpassing the elytra in breadth; convex, 

 and usually rather more fuscous, or picescent than the rest of the surface ; with its posterior 

 angles much produced, and (together with its extreme basal edge) somewhat flavescent. Elytra 

 short and wide, with their hinder margin a little paler. Antennce and legs pale-testaceous ; the 

 former rather long. 



A large and well-marked Acratrichis, somewhat approaching to the A. grandi- 

 collis and the A. atomaria of more northern latitudes : nevertheless it differs from 

 both of those species in its superior size, in its wider (though proportionably 

 shorter) form, in its very pale legs and antennae, and in its greatly developed and 

 somewhat picescent prothorax, — which, at its base, far exceeds the el}i:ra in 

 breadth. It is apparently extremely rare, and confined to lofty sylvan spots where 

 tlie constantly accumulating leaves are in a state of perpetual decay. In such 

 localities I have taken it, diu'iiig July, in the upland region of the Fanal (more 

 than 5000 feet above the sea), especially at the edges of the rovmd crater-Uke basin, 

 known as the Lagoa, immediately before the descent of the mountain-road to the 

 Ribeiro da Janella and Porto Moniz. 



86. Acratrichis fascicvdaris. 

 A. oblongo-ovata pubescens nigra nitida, prothorace amplo ad basin elytris paulo latiore, angulis 



posticis valde productis, antennis infuscatis, pedibus testaceis. 

 Long. corp. Hn. \. 



Latridius fascicularis, Herbst, Kaf. v. 8. t. 44. f. 7 (1793). 

 Tricliopteryx fascicularu, Heer, Fna Col. Helv. i. 374 (1841). 

 graiuUcolUs, Erich. Xat. der Ins. Deutsch. iii. 20 (1848). 



Habitat Maderam, sub stercore foliisque arborum marcidis, sestate minus frequens. 



